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Angular collenchyma occurs in
(a)Cucurbita.
(b)Helianthus.
(c)Althaea.
(d)Salvia.

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Important Questions on Biology
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Identify and in the given diagram of shoot apical meristem ?

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Match the Column-I with Column-II and select the correct option
Column-I | Column-II | ||
(a) | Ciliated columnar epithelium | (i) | Endothelium |
(b) | Cuboidal epithelium | (ii) | Upper respiratory tract |
(c) | Squamous epithelium | (iii) | Thyroid follicle |

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Which of the following are the characteristic features of phloem?
i) Gymnosperms have albuminous cells and sieve cells
ii) Presence of tracheids
iii) They store food materials in the form of starch or fat
iv) They have sieve tube elements that are long, tube-like structures
v) Their end walls are perforated in a sieve like manner
The correct combination is

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Match List - I with List - II.
List-I | List-II | ||
(a) | Cells with active cell division capacity | (i) | Vascular tissues |
(b) | Tissue having all cells similar in structure and function | (ii) | Meristematic tissue |
(c) | Tissue having different types of cells | (iii) | Sclereids |
(d) | Dead cells with highly thickened walls and narrow lumen | (iv) | Simple tissue |
Select the correct answer from the options given below.

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(i) Fruit wall of nuts
(ii) Pulp of fruit like guava and pear
(iii) Seed coat of legumes
(iv) Micropyle of pea

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